mirror of https://gitee.com/openkylin/linux.git
2b8b328b61
Currently, the polling errors were ignored, which can lead following issues: - vhost remove itself unconditionally from waitqueue when stopping the poll, this may crash the kernel since the previous attempt of starting may fail to add itself to the waitqueue - userspace may think the backend were successfully set even when the polling failed. Solve this by: - check poll->wqh before trying to remove from waitqueue - report polling errors in vhost_poll_start(), tx_poll_start(), the return value will be checked and returned when userspace want to set the backend After this fix, there still could be a polling failure after backend is set, it will addressed by the next patch. Signed-off-by: Jason Wang <jasowang@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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.. | ||
Kconfig | ||
Kconfig.tcm | ||
Makefile | ||
net.c | ||
tcm_vhost.c | ||
tcm_vhost.h | ||
test.c | ||
test.h | ||
vhost.c | ||
vhost.h |